The Dow Jones Industrial Average, the New York Stock Exchange’s blue-chip index, closed above 20,000 for the first time in its history on Wednesday, while two other leading stock market indexes – the S&P 500 and the Nasdaq Composite – both set new record highs.

The Dow closed at 20,068.51, up 0.78 percent, while the S&P 500 finished up 0.80 percent at 2,298.37 and the Nasdaq climbed 0.99 percent to finish at 5,656.34.

The new milestone for the Dow occurred shortly after the market opening. It came just over three and a half years after that index cracked 15,000 for the first time and just under 18 years after it first moved above 10,000 in 1999.

It was the second Dow milestone since the current president of the United States was elected on Nov. 8, with the 19,000-point mark threshold having been eclipsed on Nov. 22.

The stock market got an initial post-election boost and has surged higher in recent days since Donald Trump, who this week said he would make good on promises to cut taxes across-the-board and slash regulations, was inaugurated on Jan. 20.

Of the 30 large-cap companies that make up the Dow, The Boeing Company was the biggest gainer on Wednesday, climbing 4.2 percent thanks to a strong earnings report.

Other Dow components that moved higher during the session were Caterpillar and Apple, which closed up 1.98 percent and 1.57 percent, respectively.

The Procter & Gamble Company sustained the day’s biggest loss among Dow stocks, falling 0.80 percent.

Trump sent out a brief tweet after the Dow climbed above 20,000 points, simply saying, “Great!”

A high-ranking assistant of the president’s, Kellyanne Conway, also took to Twitter after the news, calling the new milestone “The Trump Effect.” EFE